Noise reduction system and method

Details Noise reduction system and method Noise reduction system and method

2011-08-30

2011-08-30

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Housed microphone

C381S355000

Reexamination Certificate

active

08009851

ABSTRACT:
The present invention relates to a sound receiving device and a microphone unit for such a sound receiving device. In microphone unit there is provided a microphone, an air filled chamber and a wind noise barrier covering chamber for providing a wind shield and having at least one air passage channel connecting the exterior of the device with the air filled chamber and having an inlet facing the exterior of the device and an outlet facing the air filled chamber. The air passage channel comprises at least one turn for reducing the influence of the wind on microphone. The invention provides enhanced wind noise reduction.

REFERENCES:
patent: 2536261 (1951-01-01), Caldwell, Jr.
patent: 4966252 (1990-10-01), Drever
patent: 5442713 (1995-08-01), Patel et al.
patent: 2003/0194103 (2003-10-01), Kakinuma
patent: WO2005/067653 (2005-07-01), None
patent: WO 2005/067653 (2005-07-01), None

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